(3/5)^-2 Possible answers: 9/25 -9/25 -25/9 25/9

Which statement correctly describes the expression

pav-90 [236]

Answer:

c

Step-by-step explanation:

choice A means

$11 - 2 {m}^{3}$

choice B means

$2m - 11$

choice C means which is the answer

${2m}^{3} - 11$

choice D means

${(2m)}^{3} - 11$

hope it helps ❤❤❤

For any question comment me

3 0

2 years ago

HELPPPPPPPPPPPPP!!!!!! 2-10?!? espcially 5,6,8,9,10

emmainna [20.7K]

2-10 = -8 I'm not sure what the 5,6,7,8,9,10 means if you tell me i might be able to help you

3 0

2 years ago

Read 2 more answers

What is the result of substituting for y in the bottom equation y=x+3 y=x^2+2x-4

8_murik_8 [283]

The solutions are (2.1925, 5.1925) and (-3.1925, -0.1925)

Solution:

Given that,

$y = x + 3 ------- eqn 1\\\\y = x^2 + 2x - 4 ----- eqn 2$

We have to substitute eqn 1 in eqn 2

$x + 3 = x^2 + 2x - 4$

$\mathrm{Switch\:sides}\\\\x^2+2x-4=x+3\\\\\mathrm{Subtract\:}3\mathrm{\:from\:both\:sides}\\\\x^2+2x-4-3=x+3-3\\\\\mathrm{Simplify}\\\\x^2+2x-7=x\\\\\mathrm{Subtract\:}x\mathrm{\:from\:both\:sides}\\\\x^2+2x-7-x=x-x\\\\\mathrm{Simplify}\\\\x^2+x-7=0$

$\mathrm{Solve\:with\:the\:quadratic\:formula}\\\\\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}\\\\x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}\\\\\mathrm{For\:}\quad a=1,\:b=1,\:c=-7\\\\x =\frac{-1\pm \sqrt{1^2-4\cdot \:1\left(-7\right)}}{2\cdot \:1}$